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G. CUTHBERT.

LOOM FOR WEAVING ENDLESS FABRICS.

APPLICATION FILED APR. 23. 19|?. 1,326,742., Patent-ed Nov. 4,1919.

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LOOM FOR WEAVING ENDLESS FABRICS.

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sin ss GEORGE CU'lI-IBERT, OF PHILADELPHIA, PENNSYLVANIA, ASSIG'NOR TO MANNING J. SMITH, DOING BUSINESS UNDER THE NAME AND STYLE OF MANNING J'. SMITH IBELTING- COMPANY, OF PHILADELPHIA, PENNSYLVANIA.

LOOM FOR WEAVING ENDLESS FABRICS.

Specification of Letters Patent.

Patented Nov. 4, i919.

Application filed April 23, 1917. Serial No. 163,854.

To all whom it may concern.'

Be it known that I, GEORGE CUTHBERT, a citizen of the United States, residing at Philadelphia, county of Philadelphia, and State of Pennsylvania, haveJ invented a new and useful Improvement in Looms for Veaving Endless Fabrics, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, which form a part of this specilication.

The object of the invention is to provide a loom for weaving endless fabrics, such as belts.

To this end van important feature of the invention involves the construction of a loom in separable parts, one part, carrying the warp and thev heddles, being removable from the main body of the loom to allow the warp to be wound thereon. In practice, therefore, a number of detachable frames are provided for each loom, one of them being in place on the loom during the operation of the loom and the others are being wound preparatory to their substitution, one at a time, for the first frame, which, as soon as the warp is exhausted therefrom by the completion of the article being woven, is removed to receive a fresh supply of warp.

A preferred embodiment of the invention is shown in the accompanying drawings, in which- Figure 1 is a plan view of the loom.

Fig. 2 is a side view of the removable warp frame.

Fig. 3 is a side view of one of the heddle frames.

Fig. ois a Side View of the loom.

Fig. 5 is a front view of a portion of the loom showing the shuttle and heddle actuating mechanisms.

Fig. 6 is a detail view of the shuttle.

Fig. 7 is an end view, partly in section, of a part of the shuttle actuating mechanism.

Fig. 8 is a side View of the reed and its carrier.

Fig. 9 is an enlarged plan view of the shuttle box mechanism.

Fig. 10 is a side view of the shuttle actuator and the adjacent parts.

Fig. 11 is a plan view of the shuttle box, showing the warp and in section the reed and heddles.

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Fig. 12 is a detail rear view of the crosshead for actuating the shuttle.

The main frame a of the loom carries the usual elements of a loom except the warp beams and heddle frames, which are carried by a separate frame I), shown detached in Fig. 2 and applied to the loom body in Figs. l, 4C and 5.

The frame I) is of rectangular shape with its upper horizontal member extended to form an overliangiiig bar c, which may be of any length. Slidable upon the bar c is a bar d, which, by means of a stop e insertible in any of the holes 7, may be adj usted to different positions along the bar c to provide for different lengths of warp, as will be, hereinafter described.

rlhe bar cl carries a roller g, and the frame Z) proper carries the three rollers L, i and and the pins la and Z.

The warp is wound endlessly upon the rollers g, h, c' and y' (which do not rotate) in the following manner. An end warp is attached to the pin 7c and is thence passed around rollers i1., g, t' and y' successively and repeatedly until the entire length of warp is wound, the other end of the warp being attached to the pin Z.

Secured to the upper member of the frame is a heddle-frame guide m, within which are guided any number of heddle frames, say Each heddle frame n is bent upon itself at top and bottom to afford means to hold pins 0, o, which pass through holes at the upper and lower ends respectively of heddles p. Each of the heddles p is of such construction that it aifords an open eye within which one section of warp may be inserted and comprises means vfor closing the eye after the insertion of the warp. rlhe construction of the heddles p is not herein disclosed, as it forms no part of the present invention.

'After the frame is wound with warp as above described, it is applied to the main frame a by means of thumb screws s, s, or other fasteners extending through holes g, g, in the frame Z) and corresponding holes in the main frame a. The warp is properly distributed in the dents of the reed r. After the frame is so secured to the main frame a, a weight t is attached, through a flexible connection u extending over a roller oon the main frame a and a roller w on the bar c to a pin a' on the bar CZ. rllhereby a suitable tension is imposed on the warp, the tendency of the weight being to draw the bar cl outward away from the stop e. Shortly after starting the loom, the ends of the wiarp are detached from the pins lo and Z.

rThe loom is a high speed loom, and the warp thereon can be completely woven into a fabric in a fraction of the time required to wind the warp upon the frame b and engage the warp with the heddles. Hence the provision of means for the detachability of the part of the loom carrying the warp and heddles permits the almost continuous operation of the loom. DtherWiSe, the loom would be idle the major part of the time and a comparatively large number of looms with the same number of Workmen, would be required to weave a given number of endless fabrics.

The movable loom elements are driven from a pulley y on a driving shaft e. The shaft e carries a pair of grooved cam disks 10. The cam grooves engage pins on the ends of levers 11, which are connected to the lower ends of the heddle frames n by means of links 12, readily attachable to and detachable from the heddle frames u. r1`he shape of the cam grooves of disks 10 is such that the heddle frames carrying the two sets of warp threads are reversed with great rapidity and move slowly as they approach and leave their extreme positions.

The shaft e also carries a bevel gear 13, which drives a bevel gear 14, on a vertical spindle turning in bearings on the loom frame. rllhis spindle has a bevel gear 15, which drives a bevel gear 16 on a shaft 17. The shaft 17 carries an arm 18 having a groove 19 engaging one arm of a crank 20. The other arm of crank 20 is connected, by a link 21, with the carrier 22 for the reed r.

The driving connections to the reed are such that during both its advance and its retraction past the shuttle race it will move with comparatively high speed, while toward the end of its back stroke (to the right, Figs. 1 and 4) and at the beginning of its advance stroke, it will move comparatively slowly. Thereby provision is made for rapidly beating in the weft as soon as the shuttle throws a pick and after the shuttle has cleared the warp and before it returns for its next throw.

The base of the reed r is removably held in a socket in the carrier 22 by means of a spring pressed lever 23. The inner side wall of the socket has a projection 24 and one arm of the lever 23 has a projection 25. These projections engage correspondingdepressions in the reed base. The reed may thus be readily removed, and if desired, may be engaged with the warp before the frame is applied to the main frame a of push or pull the shuttle along the shuttle race as hereinafter described. Rollers 38 on the members 30 ride in a grooved cam-way 37 secured to the inner wall of the box 30. The cam-way 37 is straight throughout its length except along that part thereof below the warp shed where it is curved outwardly,

the eect of which is, as the shuttle is pass ing through the Shed, to draw first one member 33 and then the other member 33 out of engagement with the shuttle, and to reinstate into engagement with the shuttle the member first withdrawn before the other member is withdrawn, the second member being also reinstated as the tail of the shuttle is passing through the shed. Thus the shuttle is at all times positively carried by one or both slidable members of its actuator.

An overhanging plate 39 (see Fig 7 secured to a bracket on the box 30, extends under the extension 35 ofthe shuttle 34, and prevents the loose thread delivered by the shuttle from dropping down, as well asprotecting the woven fabric from the oil and dirt of the shuttle box. o

The actuator 32 has a pin 36 to which is connected a rod 40 (see Fig. 5), which is in turn actuated by a link 41 connected to one end of a rocking lever 42 pivoted at the other end to the machine frame. The rocking lever 42 is Islotted longitudinally to receive a slide 43 connected by a link 44 with the machine frame. The slide 43 is also connected, by a connecting rod 46, with a disk 47 on the main shaft e.

The above mechanism for actuating the shuttle-actuator 32 and shuttle 34 is such that the latter will move comparatively slowly toward opposite ends of itstravel,

while it will move with comparatively great l in combination, a main frame, an auxiliary frame attaohable to and detachable from the main frame, and Warp-engaging means on the detachable frame aording an endless path about Which the Warp may be Wound When the auxiliary frame is detached from the main frame and positioned to properly support and guide the Warp for Weaving When the auxiliary frame is attached to the main frame.

2. In a loom for Weaving endless fabrics, the combination With the main frame of the loom, of a detachable Warp frame, and Warp-engaging devices on the Warp frame affording an endless -path about Which the Warp may be Wound, the Warp-engaging devices being relatively adjustable to vary the length of said endless path.

3. In a loom for Weaving endless fabrics, the combination With the main frame of a loom, of a detachable Warp frame, means on the Warp frame about Which the Warp may be Wound in an endless path, and a heddleframe guide secured to the Warp frame.

4. In a loom for Weaving endless fabrics, the combination With the main frame of the loom, of a detachable Warp frame, a movable member on the latter frame, and Warpengaging means on bot-h frames, the movable member being adjustable to provide for Winding Warp in endless paths of dierent lengths.

5. In a loom for Weaving endless fabrics, the combination With the main frame of the loom, of a detachable Warp frame, a slidable member thereon, and rollers on the detachable frame and the slidable member, whereby the slidable member is adjustable to provide for Winding Warp around the rollers in endless paths of dierent lengths.

6. In a loom for Weaving endless fabrics, the combination With a detachable Warp frame and a bar extending from the frame, of a member slidable on the bar, and Warpcngaging devices on said frame and said slidable member about Which the Warp may be Wound in an endless path.

7. In a loom for Weaving endless fabrics, the combination With the main frame of the loom, of a detachable Warp frame, Warpengaging devices on the Warp frame affording an endless path about Which the Warp detachable Warp frame, an adjustable member on the latter frame, Warp-engaging vmeans on both frames about Which the Warp may be Wound in an endless path, and mutually engaging stops on the Warp frame and the adjustable member to hold the latter in different positions during the Winding of the Warp.

9. In a loom for Weaving` endless fabrics, a Warp frame comprising a rectangular structure, a bar extending therefrom, a member'slidable on said bar, and rollers on the frame and said slidable member about Which the Warp may be Wound in an endless path.

10. In a loom for Weaving endless fabrics, the combination With the main frame, of a detachable Warp frame, a member slidable thereon, rollers on the Warp frame and the slidable member about Which the Warp may be Wound in an endless path, and mutually engaging stops on the Warp frame and slidable member to hold the slidable member in different positions during the Winding of the Warp.

il. In a loom for Weaving endless fabrics, the combination With the main frame of the loom, of a detachable frame, means to secure the second frame to the first, and means to impose a tension on the Warp after the frames are secured together.

l2. In a loom for Weaving endless fabrics, the combination With the main frame of the loom, of a detachable Warp frame including a longitudinally slidable member, rollers on the detachable frame and the sliding member upon Which Warp may be Wound in an endless path, a Weight, rollers on the main frame and the Warp frame, and a flexible connection extending from the slidable member over the last named rollers to the Weight.

In testimony of Which invention, have hereunto set my hand, at Philadelphia, on this 16th day of April, 1917.

GEORGE CUTHBERT.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents, Washington, D. C. 

